What's in a name

The current controversy as to what to call the Presidents involvement in Iraq and Syria, centers around whether it is called war or not. Some say, what does it matter and that is how I feel but that is not the normal way that many in politics think. Why was pro-abortion changed to pro-choice, why was illegal aliens changed to undocumented immigrates, why was black changed to African Americans and so on. There are many examples of where people decided what you call something is important. My favorite example is woman becoming wo-person.